/*!	 synfig/rendering/primitive/mesh.cpp
**	 Mesh
**
**	......... ... 2015 Ivan Mahonin
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifdef USING_PCH
#	include "pch.h"
#else
#ifdef HAVE_CONFIG_H
#	include <config.h>
#endif

#ifndef _WIN32
#include <unistd.h>
#include <sys/types.h>
#include <signal.h>
#endif

#include "mesh.h"

#endif

using namespace synfig;
using namespace rendering;

void
Mesh::calculate_resolution_transfrom() const
{
    if (resolution_transfrom_calculated) {
        return;
    }

    resolution_transfrom_calculated = true;

    resolution_transfrom.set_identity();

    if (vertices.empty()) {
        source_rectangle = Rect::zero();
    } else {
        source_rectangle = Rect(vertices[0].tex_coords);

        for (std::vector<Vertex>::const_iterator i = vertices.begin(); i != vertices.end(); ++i) {
            source_rectangle.expand(i->tex_coords);
        }
    }
}